NOX5 and posterior cortical atrophy: To identify an in vitro model system suitable for functional analyses of endogenous Nox5 in PCa we used qPCR to screen a panel of commonly used and well characterized benign (EP156T and RWPEI) and malignant (DU145, LNCaP, PC‐3, and VCaP) prostate epithelial cell lines for Nox5 expression (Figure 3).